Electric switch



Oct. 2s. i924. L v 1,513,448

R. F. DU COIN ELECTRIC SWITCH Filed March 51. 1921 Patented Oct. 28,1924.

UNITED STATES RN F. DU COIN,` or CAMDEN, New JERSEY.

ELECTRIC SVJITCH.

Application led March 31, 1921.

To all 10710111, it muy concern.'

Be it known that I, RN F. DU COIN, citizen of the United States,residing at Camden, in the co-unty of Camden. and State of New Jersey,have invented certain new and useful Improvements in Electric Switches,of which the following is a specifica-tion.

This invention relates to an improved toot operated switch for ala-rmsystems and seeks, among other obje-cts, to provide a switch which willbe positive in its operation and which, when closed, will be held closedso as to effect the continuous sounding of an ,15. alarm until theswitch is manually opened.

Other and incidental objects will appear hereinafter.

In the drawings:

Figure 1 is a plan view of my improved switch, and

Figure 2 is a fragmentary side elevation of the switch, parts beingbroken away and illustrated in section.

In carrying the invent-ion into el'ect, I 5 employ a base block 11i nearone end of which is bolted an upstanding U-shaped post or bracketl 15,the sides 'of the bracket being bent to pro-vide laterally directed lugs1G seating against the upper face of the block and receiving the boltstherethrough. Mounted to rock upon the bracket is a. foot lever .1Treceived between the sides 'of the bracket and extending through saidsides and through the inner end portion of the lever is a. pivot bolt18. Near its outer end the lever is formed with a halt turn and isoffset downwardly toward the base block to provide a horizontallydisposed toot piece 19 adapted to abut the block for limiting 40 thelever in its downward swinging movement and formed in the upper edge otthe lever near its inner end is a notch defining a shoulder 20 disposedto cooperate with the bracket for limiting the lever in its upwardswinging movement. Suitably mounted upon the base block beneath thelever 17 is a. casing 21 in which are arranged coact contacts 2.2. andprojecting; up

mg spring Serial No. 457,407.

wardly through the casing is a button 23 sustained by one of saidcontacts. At its upper end, this button is formed with a notch or slot23 freely receiving the lever 17 therein so that, as will be seen, thelever may be swung downwardly for depressing the button and flexing oneof the contacts 22 into engagement with the other of said contacts forclosing a circuit therethrough. Screwed or otherwise secured to theblock 14.- between the post 15 and casing 21 is a. clutch member 24having a. pair of coacting upst-anding resilient clutch tinge-rs 25disposed to receive the lever therebetween so that when the lever isdepressed or swung downwardly said ingers will automatically engage thelever for holding the lever so depresse-d and consequently maintainingthe switch contacts 22 closed. As brought out in Figure 2, the block 14is provided with an opening so that wires in circuit with an alarm maybe readily connected with the contact 22. Accordinglf, since, when thelever 17 is depressed for closing the switch, the lever will be held indepressed position, the alarm will continue to sound until the lever is,manually released.

Having thus described the invention, what is claimed as new is:

In an ala-rm system, the combination of a base, a circuit closing pushbutton mounted thereon, al bracket upstanding from the base, a footlever pivoted upon said bracket to extend across the push button andmovable for depressing the button, the lever being otlset to define atoot piece extending in close spaced relation to the base and engageabletherewith for limiting the lever when the button is depressed whereby toprevent crushing of the button, and a clutch member upstanding from thebase beneath the lever between said bracket and the button and havingcoacting resilient clutch tlngcrs to receive the lever therebetweentrctionally holding the lever when swung to depress the button.

In testimony whereof I atiix my signature.

RENE F. nu conv. [L Sg

